document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=1002794>Question 1002794</A>: <I><SPAN STYLE=\"word-break: break-all;\"> A shopper brought 35 stamps in 25-cent and 15-cent denominations.  If the total spent on the stamps was $7.05, how many 15-cent stamps were bought? </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #619690 by </B><A HREF=/tutors/aboutme.mpl?userid=ikleyn><B>ikleyn(52800)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=ikleyn><IMG SRC=http://www.algebra.com/images/aboutme-small.gif BORDER=0 alt=\"About Me\" VALIGN=MIDDLE></A>&nbsp;<IMG SRC=http://www.algebra.com/cgi-bin/show-face.mpl?user=ikleyn><BR>You can <A HREF=\"/cgi-bin/embed-solution.mpl?show=1&solution=619690\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> .<BR>\n" );
document.write( "A shopper <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=highlight%28bought%29 ALIGN=MIDDLE  ALT=\"highlight%28bought%29\"   DISABLED_style= \"max-width:90%; height:auto;\" > 35 stamps in 25-cent and 15-cent denominations. If the total spent on the stamps was $7.05, how many 15-cent stamps were bought?<BR>\n" );
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document.write( "<U>Answer</U>. 18 stamps in 25 cents and 17 stamps in 15 cents.\r<BR>\n" );
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document.write( "<U>Solution</U>\r<BR>\n" );
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document.write( "Let us assume for a minute that all the stamps are in &nbsp;15 cents each. \r<BR>\n" );
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document.write( "Then the total cost would be &nbsp;35*15 = 525 cents = $5.25, &nbsp;which is in &nbsp;$1.80 less than &nbsp;$7.05.\r<BR>\n" );
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document.write( "It is clear that the difference is due to presence of &nbsp;$0.25 &nbsp;stamps that we intently counted as &nbsp;$0.15. \r<BR>\n" );
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document.write( "It is also clear that the number of these &nbsp;$0.25 &nbsp;stamps is &nbsp;<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=1.80%2F%280.25-0.15%29 ALIGN=MIDDLE  ALT=\"1.80%2F%280.25-0.15%29\"   DISABLED_style= \"max-width:90%; height:auto;\" > = <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=1.80%2F0.10 ALIGN=MIDDLE  ALT=\"1.80%2F0.10\"   DISABLED_style= \"max-width:90%; height:auto;\" > = 18 to compensate the difference.\r<BR>\n" );
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document.write( "It gives the answer: &nbsp;18 stamps in &nbsp;25 cents &nbsp;and &nbsp;35-18 = 17 &nbsp;stamps in &nbsp;15 cents.\r<BR>\n" );
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document.write( "There is another method to solve this problem using equations or systems of equations. \r<BR>\n" );
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document.write( "The way that I used here allows you to solve the problem using the mental math only.\r<BR>\n" );
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document.write( "For more problems similar to this one see the lesson &nbsp;<A  rel=nofollow HREF=http://www.algebra.com/algebra/homework/word/misc/What-type-of-problems-are-these.lesson>What type of problems are these?</A>&nbsp; in this site. \r<BR>\n" );
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